Abstract: A method for operating an exhaust gas system of an internal combustion engine having at least one heater and a catalytic converter for converting hydrocarbons, includes operating the heater in such a way that it is adapted to the aging state of the catalytic converter. A method for operating a motor vehicle and a motor vehicle are also provided.

Abstract: An electrically heatable honeycomb body includes channels and at least one heating disk having at least one first and one second layer stack of electrically conductive material. The first and second layer stacks are interleaved with and electrically insulated from each other. The first layer stack forms a first current path for conducting an electrical current for a first heating circuit and the second layer stack forms a second current path for conducting an electrical current for a second heating circuit. The first heating circuit operates at a power of 300 W to 500 W and the second heating circuit operates at 500 W to 700 W. Exhaust gas of an internal combustion engine can be evenly heated by several independent heating circuits in a common heating disk even with different heating capacities using a simple construction. A method for heating a honeycomb body and a motor vehicle are provided.

Abstract: In the embodiments of the invention described in the specification, a fuel injection pump for an internal combustion engine provides a delayed response to accelerator pedal depression for a selected time period including the time when the engine load passes through zero, thereby avoiding load shock changes. For this purpose, a throttle or bypass valve is provided which decreases the amount of fuel provided to the engine to the zero load fuel demand for the selected time period.

Abstract: In order to prevent troublesome load change shocks in an internal combustion engine for a vehicle, the power control element thereof consists of an adjustment lever operationally positioned between two spring stops. The first spring stop provides elastic transmission of accelerator pedal commands from a fuel control cable and the second spring stop, which comprises a stronger spring, is effective only after the adjustment lever moves through a preset free path and engages a support fixed on the housing. As a result, during a fuel control cable motion defined by the first spring stop, the adjustment lever is not moved, whereas thereafter, during a further fuel control cable motion, the adjustment lever is moved since the force of the spring associated with the second stop is overcome.

Abstract: A fuel injection pump for internal combustion engines having an injection timing adjustment by means of a hydraulically actuated piston is proposed, the injection timing adjustment being loaded by two restoring springs. Between the two springs, which have different forces, there is a common spring support plate. The variable functional path of the springs is determined by means of a stop and a coupler member.